Hurford, J. (1999) Artificially growing a numeral system. In Jadranka Gvozdanovic, editor, Numeral Types and Changes Worldwide , pages 7--41.

Hurford, J. (1999) Artificially growing a numeral system. In Jadranka Gvozdanovic, editor, Numeral Types and Changes Worldwide, pages 7--41.

2002	-	Natural Language from Artificial Life - Kirby	::	67
1997	-	Simulated Evolution of Language and Language Processors - Beaver	::	1